Logo

What exactly is the difference between a surge protector and a fuse? Can a fuse protect the electronic devices from lightning instead of surge protector?

Last Updated: 18.06.2025 17:48

What exactly is the difference between a surge protector and a fuse? Can a fuse protect the electronic devices from lightning instead of surge protector?

so, the loop of wire then, when put together with another loop reduces the ‘noise’ on a power line.

This device then solves the entire problem.

a photo is worth a thousand words.

Fog of trade war hangs over economy, but the Fed still has to make a forecast. Here’s what it’s faces. - MarketWatch

This is the picture of an electronic coil of wire wound around a core of magnetic material.

He then asserts :

Edit 2024–10.

Which album is your favorite that's now 50 years old (from 1975), and what's the best song on the album?

It seems Mohan does not understand the difference between a comment and an Answer.

At least they know the answer if they wanted it.

But during the surge, the fuse will not blow if it is a longer duration and lower value )10 to 50%).

Have you ever witnessed political correctness harm someone?

(Dc diagram shown, AC is similar).

(There is no concept of polarity, in the loop because the current changes direction 100 to 120 times a second (power frequency).

So combined with a device called a MOV or Metal-oxide-resistor, then forms the 3rd part of a “surge suppressor “.

How does Bollywood influence Indian culture?

These devices are installed between the “hot” and “neutral” and protective ground.

But… the neutral is now “floating” because of the 1 ohm resistance.

One is “what exactly is in a ‘surge protector’ ? ”

Can anyone or anything overthrow your belief in the Jewish God?

Here is a simplified AC power diagram.

Lightning arrestor is a spark-gap device, and can be installed anywhere. What is important, is that the wire is thick enough to withstand the lightning bolt and conduct the energy away from the building.

P = e* I, so since I is 16 amps, then the voltage dropped is 1/16 volt or 0.0650 volts.

Why do people keep complaining about how some people copy and paste the question before answering it? To me, it's very disturbing and makes me want to block and mute them as annoying whiners.

This is 'the assistant's answer'

OK, this is Mohan Rajaratnam’s definition of a Surge suppressor.

This is a high voltage low current spike that comes down the line because of the power poles being struck, and the voltage suppressors activating on the primary side of the transformer.

How strict are your parents?

There is no harm in having the surge suppressor along with the fuse in the circuit. The fuse will not open up until the current melts the link. This will take time, and in the interim, that jolt will get transmitted into the power supplies.

But it can get overloaded, and no longer works.

A fuse is a non-resetable over current circuit protector.

Stolen iPhones disabled by Apple's anti-theft tech after Los Angeles looting - TechSpot

2024–09–27 [ Mohan Rajaratnam Mohan Rajaratnam ] . Thinks you can get free electricity from nothing : Mohan Rajaratnam's answer to Is it possible to generate free electricity at home using a magnet or other low-cost methods? If so, how does it work?

“ A surge suppressor is the one which is connected at the input supply so that when there is a sudden change voltage it bypasses thereby protecting the (circuit) and electronic components”

The other is “what does a “fuse” do?”

Has your wife made you a cuckold?

Mohan forgets that a fuse is a one-time device, and needs to be replaced if it is tripped.

but I think this circuit , shows a few more pieces.

Can the fuse protect the electronic devices from lightning instead of a surge protector.

What was the worst spanking you ever got? Why did you get it, and how was it given to you?

2024–10–14 [Omar Gharbi Omar Gharbi ]

An AC voltage/ current source, and an ac inductive load.

2024–10–11 [Bobby Sanchez Bobby Sanchez ].

Nintendo will finally reveal more about Donkey Kong Bananza in new Direct - Polygon

2024–10–10[John johnson John Johnson ]

It’s been three xxx five werks, and there has been no response to my follow on query on his Commment to my answer.

I post the exact comment here.

[old diagram got deleted by accident]

eight

but this device (an Inductor) … impedes the rapid changes in the current.

There are two important concepts here.

This is a photo where a lightning bolt took out a home's complete mains distribution box, and a lot of electronic gear as well.

There are three different concepts here that are getting confused.

At one ohm, the resistor has a maximum of 1 watt power.

A circuit breaker is similar, but is resettable.

First Sentence:

This one hit behind the barn.

It also is a device that limits the change in current flow.

He then describes Rainy Season and Lightning.

For this case there are devices called Metal oxide varistors (MOV).

When the current is 200% of the rated value , it will “go open” (the link metal melts) and protect the device.

“ A fuse is a device which protects the (circuit) against overload and short circuit.”

This is an electronic circuit designed to clamp voltages so that the Voltage Potential that appears at the outlet is never going to exceed the nominal value.

Because the load is inductive, the current lags the voltage.(by a bit).

At the secondary, it is 1000 times less.)turns ratio). If it gets hit with a 100,000 volt bolt of lightning then the voltage arrestors conduct and clamp the voltage down to line voltage, ( but a small amount leaks down the line). This is the problem.

What does a fuse do?

If the nominal power is 4,000 watts then the current at 230volts is 16 amps.

The bolt then partially travels down the line to your home.

so, what happens?

These are simplified answers to the original question, and does not change anything I wrote above.

the problem then depends on "how fast does the fuse operate?".

He then describes the function of a fuse.

Once the voltage goes over 0.0650 volts, then this fact can be used to amplify the difference, and turn the circuit breaker off , furthur down the line. Essentially that is what a RCD/GFCI does, it compares the incoming current, to the outgoing current, and if the difference between the two currents is over 5mA, then it trips the circuit breaker.

what exactly is a ‘surge’ protector?

Is the question then , "why buy a surge supressor, if the fuse alone protects the electronic circuits from a lightning bolt?".

So, it’s possible that these devices from Trip Lite have addition suppression devices, these ones seem to be sturdy.

Fuses, on their own, then operate much slower than the MOV variable resistance, during the lightning strike.

2024–10–00 [ Ammar Mahdi ] Ammar Mahdi

The MOV will conduct when the voltage exceeds 50% of line voltage.

2024–10–11 [Victor Olarewsju Victor Olarewaju ]

And this is the problem alone. Is the power supply in the equipmemt designed with a lightning strike in mind? Some yes, others, no.

[image of Common-mode choke]

nine

In schematic diagrams this is the symbol for a fuse:

The third is lightning and “how it gets conducted into a home.”

Now when you have a certain ac resistance, then a current flows in a loop.

Upvotes:

This is where the MOV conducts again, and dissipated the energy.

Would individual surge supressors have save this equipment? most likely, since the surge supressor would take the jolt instead of the electronic components.

What is lightning?

Barnstars:

So, the voltage could go up to 500 volts, and the fuse will not open up.

“ … to protect building, lightning arrestor, is provided above building and directly connected to earth.”

One

2024–10–16 [ OO OLAOYE OYEBODE ]

This is where this question deviates from being a 'generic' question, and becomes more specific.